👉 In telecommunications, a telethon is an organized event or campaign that raises money for a specific cause. The term "telethon" comes from the phrase "telephoning," which is a method of communication where one person speaks into another's ear while they are on the phone. A telethon typically involves several hundred to thousands of participants, each donating money directly to a charity or organization that will use the funds raised for their cause. The goal of a telethon is to raise awareness and generate